Here are details on Hockey Day 2012, via the Minnesota Wild's web site:

Hockey Day Minnesota 2012 on FOX Sports North will include a full day of local hockey-related programming designed as a celebration of the game from peewees to pros. Lake Minnetonka and the city of Excelsior will serve as the background for the three outdoor high school games featured in the Hockey Day Minnesota 2012 line up.

Outdoor Games on Lake Minnetonka in Excelsior:

White Bear Lake vs. Grand Rapids (Boys)
Minnetonka vs. Duluth East (Boys)
Minnetonka vs. Hopkins (Girls)

Hockey Day Minnesota coverage will include a Minnesota Wild game from Xcel Energy Center, as well as the University of Minnesota Golden Gophers against Colorado College from Mariucci Arena. A complete list of games and programming schedule will be released at a later date.